Did some light cleanup work while I was under the hood. Cleaned up the corrosion on the coolant reservoir strap so that's looking fine. The battery tray looks ghastly so I will be cleaning that up and putting some new bolts on there in time. Much of the tray itself is salvageable, just dirty.
Note: when installing the wastegate pressure line without taking out the turbo, install the line onto the wastegate before putting it back on the turbo. Difficult is an understatement. Trying to service a turbo without taking it out is like trying to stuff a turkey while it's in the oven.
The stray cat who hangs around threw up next to it so I hosed down the underside and the area around it. Still got a bunch of crud but a ton of oily sand just got washed out, as expected from a redblock owned by a surfer. The cat was evidently displeased so he marked my Miata.
I'm also toying with illustrating all this to keep my drafting skills sharp. Stay tuned on that.